found: Work cat.: 92025228: Potyvirus taxonomy, c1992.
found: Fraenkel-Conrat. The viruses:pp. 147-8.
found: Classification and nomenclature of viruses:p. 152.
found: Edwardson, J.R. The potyvirus group, 1991.
found: Fraenkel-Conrat, H. The viruses, 1985:p. 147 (Potyvirus Group)
found: MeSH browser, Apr. 27, 2007(Potyvirus. Scope note: a large genus of plant viruses of the family Potyviridae)
found: Plant viruses online, Apr. 27, 2007(Potyviruses, genus in family Potyviridae)
notfound: Dulbecco. Virology